A clamp group for a vehicle leaf spring suspension is disclosed. The clamp group secures a longitudinally disposed, leaf spring at separate and distinct locations, between which the leaf spring is undamped and spaced away from the top and bottom pads of the clamp group. Shear stress is reduced and the spring remains active throughout its length.

A leaf spring may include: an upper plate provided with arc-shaped portions which are integrally formed on both end portions thereof, respectively, for forming spring eyes; a lower plate disposed to overlap a lower side of the upper plate and provided with arc-shaped portions which are integrally formed on both end portions thereof, respectively, and face the arc-shaped portions of the upper plate to form the spring eyes; clamping units installed to restrain the both end portions of the overlapped upper and lower plates from being separated from each other; and a central fastening unit configured to fasten central portions of the overlapped upper and lower plates.

A traction bar prevents rotation of an axle housing for a vehicle utilizing leaf springs. A traction bar has a rigid rail member having a first end and a second end. The traction bar also has a pivoting shackle member having a proximal end and a distal end. The proximal end of the shackle member is pivotally attached to the vehicle frame or to a vehicle frame bracket attached to the vehicle's frame. The distal end of the shackle member is pivotally attached to the first end of the rigid rail member. An axle bracket is pivotally attached to the second end of the rigid rail member. The three pivots provided with the traction bar provide for normal movement of the suspension without binding. However, upon acceleration or high torque load, the shackle member is thrust into axial alignment with the rigid rail member, stopping forward motion of the rigid rail member.

A traction bar prevents rotation of an axle housing for a vehicle utilizing leaf springs. A traction bar has a rigid rail member having a first end and a second end. The traction bar also has a pivoting shackle member having a proximal end and a distal end. The proximal end of the shackle member is pivotally attached to the vehicle frame or to a vehicle frame bracket attached to the vehicle's frame. The distal end of the shackle member is pivotally attached to the first end of the rigid rail member. An axle bracket is pivotally attached to the second end of the rigid rail member. The three pivots provided with the traction bar provide for normal movement of the suspension without binding. However, upon acceleration or high torque load, the shackle member is thrust into axial alignment with the rigid rail member, stopping forward motion of the rigid rail member.

A leaf spring suspension system for a vehicle includes a chassis rail. Also included is a pivot block operatively coupled to the chassis rail and rotatable relative to the chassis rail. Further included is a leaf spring operatively coupled to the pivot block proximate an end of the leaf spring. Yet further included is a half leaf spring operatively coupled to the pivot block proximate a first end of the half leaf spring and operatively coupled to a vehicle axle proximate a second end of the half leaf spring.

A leaf spring suspension system for a vehicle includes a chassis rail. Also included is a pivot block operatively coupled to the chassis rail and rotatable relative to the chassis rail. Further included is a leaf spring operatively coupled to the pivot block proximate an end of the leaf spring. Yet further included is a half leaf spring operatively coupled to the pivot block proximate a first end of the half leaf spring and operatively coupled to a vehicle axle proximate a second end of the half leaf spring.

A leaf spring assembly resiliently supporting a wheel carrier on a vehicle body of a motor vehicle. The leaf spring assembly including first and second spring leaves and a clamp having a clamping part exerting a clamping force whereby the first and second spring leaves are held together by the clamp. A bridging part arranged between the first spring leaf and the clamping part transmits at least part of the clamping force from the clamping part to the first spring leaf bridging the second spring leaf and reducing the clamping force exerted thereon.

A leaf spring assembly resiliently supporting a wheel carrier on a vehicle body of a motor vehicle. The leaf spring assembly including first and second spring leaves and a clamp having a clamping part exerting a clamping force whereby the first and second spring leaves are held together by the clamp. A bridging part arranged between the first spring leaf and the clamping part transmits at least part of the clamping force from the clamping part to the first spring leaf bridging the second spring leaf and reducing the clamping force exerted thereon.

A bush device for an eye section of a leaf spring applied to a suspension of a vehicle is disclosed. The bush device includes a first hollow bush that is configured to be inserted into the eye section, and a plurality of second bushes that are disposed adjacent to both side surfaces of the eye section, respectively. Each of the second bushes have an aperture that is formed at a central portion thereof, and a leaf spring fixing bracket into which the second bushes are inserted.

A bush device for an eye section of a leaf spring applied to a suspension of a vehicle is disclosed. The bush device includes a first hollow bush that is configured to be inserted into the eye section, and a plurality of second bushes that are disposed adjacent to both side surfaces of the eye section, respectively. Each of the second bushes have an aperture that is formed at a central portion thereof, and a leaf spring fixing bracket into which the second bushes are inserted.